package com.doone.telmarket.action.web;

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.OutputStream;
import java.util.Random;

import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts2.convention.annotation.Action;

import com.doone.telmarket.action.admin.BaseActionSupport;
import com.opensymphony.xwork2.ActionContext;

public class CreateCheckWord extends BaseActionSupport {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	@Action("createCheckWord")
	public void createCheckWord() {

		try {
			HttpServletResponse response = (HttpServletResponse) ActionContext.getContext().get(
					org.apache.struts2.StrutsStatics.HTTP_RESPONSE);
			response.setHeader("Pragma", "No-cache");
			response.setHeader("Cache-Control", "no-cache");
			response.setDateHeader("Expires", 0);

			int width = 60, height = 20;
			BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
			OutputStream os = response.getOutputStream();
			Graphics g = image.getGraphics();

			Random random = new Random();

			g.setColor(getRandColor(200, 250));
			g.fillRect(0, 0, width, height);

			g.setFont(new Font("Times New Roman", Font.PLAIN, 18));

			g.setColor(getRandColor(160, 200));
			for (int i = 0; i < 155; i++) {
				int x = random.nextInt(width);
				int y = random.nextInt(height);
				int xl = random.nextInt(12);
				int yl = random.nextInt(12);
				g.drawLine(x, y, x + xl, y + yl);
			}

			String sRand = "";
			for (int i = 0; i < 4; i++) {
				String rand = String.valueOf(random.nextInt(10));
				sRand += rand;

				g.setColor(new Color(20 + random.nextInt(110), 20 + random.nextInt(110), 20 + random.nextInt(110)));
				g.drawString(rand, 13 * i + 6, 16);
			}

			session.put("verifyCode", sRand);

			g.dispose();

			ImageIO.write(image, "JPEG", os);
			os.flush();
			os.close();
			os = null;
			response.flushBuffer();
		} catch (Exception e) {

		}

	}

	private Color getRandColor(int fc, int bc) {
		Random random = new Random();
		if (fc > 255) {
			fc = 255;
		}
		if (bc > 255) {
			bc = 255;
		}
		int r = fc + random.nextInt(bc - fc);
		int g = fc + random.nextInt(bc - fc);
		int b = fc + random.nextInt(bc - fc);
		return new Color(r, g, b);
	}
}
